Rocket-propelled grenade

A rocket-propelled grenade, comprising:na propulsion section comprising a booster propellant housing defining a nozzle and a groove;a payload section operably associated with the propulsion section and joined to the booster propellant housing, the payload section comprising:na shell;one or more penetrators disposed in the shell; anda charge for compromising the shell to deploy the one or more penetrators when the charge is initiated;a plurality of fins operably associated with the booster propellant housing;a plurality of biasing elements, corresponding to the plurality of fins, operably associated with the plurality of fins for biasing the plurality of fins to an unfolded configuration; anda spring ring disposed in the groove, such that the spring ring changes shape when the plurality of fins is deployed to lock the plurality of fins in a deployed configuration.

A rocket-propelled grenade, comprising:na propulsion section, comprising:na booster propellant housing;a casing joined to the booster propellant housing;a firing charge disposed at an aft end of the casing;a booster propellant disposed in the booster propellant housing; anda mechanical booster igniter operably associated with the booster propellant;a payload section operably associated with the propulsion section and joined to the booster propellant housing, the payload section comprising:na shell;one or more penetrators disposed in the shell; anda charge for compromising the shell to deploy the one or more penetrators when the charge is initiated;a plurality of fins, wherein the mechanical booster igniter comprises:nan arming pin;a first spring-loaded locking pin engageable with the arming pin;a spring-loaded striker operably associated with the arming pin;a second spring-loaded locking pin operably associated with the spring-loaded striker and a fin of the plurality of fins; anda primer operably associated with the spring-loaded striker.